Rear Lower Arm Bolt

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AHK
Posts: 6
Joined: Thu Jul 04, 2013 10:24 am
Location: Slough

Rear Lower Arm Bolt

Post by AHK »

Morning guys,

I have been helping a friend with his N/A MR2 Rev 3.

He has a gearbox fluid leak, which we narrowed down to the driveshaft seal. We replaced this last night. We left the outer end of the shaft in the hub and removed the 19mm bolt that holds the rear lower arm on the chassis.

When re-assembling we had a mare getting the bolt back in. Tried all sorts but ended up fighting with it in the dark and giving up.

Just before we left I tried the bolt in the hole without the arm, and could not get it to start. You can't actually see the back of the hole it winds into as it is enclosed, but i managed to get my little finger through a hole underneath, and could feel whatever it is wobbling slightly.

I think the threads are nackered on the start of the bolt, so want to try a new bolt in there.

From what I've found I think the bolt is part number 48703E. Toyota can't get one for a couple of days. Does anybody know of an alternative that will fit?

I have a picture of the bolt and an exploded diagram of the arm, but obviously can not post the links yet. Any help greatly appreciated.


Cheers in advance,

Adam
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AManInDandism
Posts: 540
Joined: Tue Sep 25, 2007 12:18 pm
Location: Fife

Re: Rear Lower Arm Bolt

Post by AManInDandism »

Unsure about an alternative. The bolt is tapered at the end, isn't it?
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DB Mr2
Posts: 398
Joined: Tue May 10, 2011 1:34 pm

Re: Rear Lower Arm Bolt

Post by DB Mr2 »

I had this when replacing one of the ball joints it took ages as it was the first time i had taken that bolt out.

I had to make sure the hub was aligned properly (I applied force inwards) as it kept moving about and causing the arm to pull away from the hole the bolt alings with.

Silly little thing but i started to doubt myself and thought i had threaded the bolt!

Not saying this is the correct way to do it or safe etc etc.. just my two cents.
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AHK
Posts: 6
Joined: Thu Jul 04, 2013 10:24 am
Location: Slough

Thanks

Post by AHK »

Thanks for the responses guys.

It is indeed tapered, but I am unsure whether the thread should run to the end.

Wish I could show you the picture :(
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AManInDandism
Posts: 540
Joined: Tue Sep 25, 2007 12:18 pm
Location: Fife

Re: Rear Lower Arm Bolt

Post by AManInDandism »

The tapered end has no thread on it
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AHK
Posts: 6
Joined: Thu Jul 04, 2013 10:24 am
Location: Slough

Re: Rear Lower Arm Bolt

Post by AHK »

AManInDandism wrote:The tapered end has no thread on it


Nice!

Thanks for that :thumleft:
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AHK
Posts: 6
Joined: Thu Jul 04, 2013 10:24 am
Location: Slough

Re: Rear Lower Arm Bolt

Post by AHK »

So it seems the thread in the actual hole is nackered.

It doesn't look like the box section that the hole is in comes off. Looks like we will have to retap the hole :(
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